Chiropractic adjustment machine



May 15, 1923.

E. H. ASHLOCK CHIROPRACTIC ADJUSTMENT MACHINE Original Filed June 8, 1921 INVEN TOR. [HI [J7 [M40616 ATTORNEY Patented May 1923.

UNITED ERNEST H. ASHLOCK, OF SAN" DIEGO, CALIFORNIA, Assn-nonQF/ iJE-EQURTHQTQ WILLIAM H. SWEE'ILAND AND ONE-FOURTHTO' WALTER RITTEN'HOUSEMBQTHLGI'F DIEGO, CALIFORNIA.

CHiI'tOPRACiIC ADJUSTMENT MAdH fi a piieetiohmea June 8, 1921,Serie1No. 475,874. Riiew'dieliiiiai y 3,19%,

T 0' all whom it may eoneem:

Be it known thzit ERNEST ASHLO K, citizenof the United States, residing at San Die' 0,ii1 the county of San Diego and State 6 of (ialifornia, have invented weeitaih new and useful Chiropractic Adjustment Machine, of whieh'theioHowing is a s ecifiest-ion.

' My invention relates to a machine for 1 makinghifbpia'cti'c adjustments and the ob= jee'tsof my invention are first, to provide a mOtOn'dri'Ven machine w ieh willbe eflective for roducing the proper" motions against-thehody for prodiieing' vertebrae ad- 16 justmehts, reiating to the science of chir'O-' reet-ie; second, to 'r'ovid a; machine OfthiS class which is eesilyzti 'd readily handled upon the: body of the-patient; third,'te rovide a 'mzihine' (if this class which is adjust- 20 able, ada ting it-foi ractically all purposes and positions in the chiropractic profession fduith, to provide a machine of this class which-is operated, -c1i1-eet1y by an eleetiie mo tor which may be Operated from any source of electrical ener'g'j fifth, to provide arde- Vice of this class which is very co pactin form and sixth-to provide a device Oi -this class which is very simp-1e,eeohemiee1 of construction, durabl easy to operate, efiident in its action, end'whieh will not readily' deteriorate or get out of order; I

Withthese and ether-objects in view as Will appeaihereinzifter, my inventionfcohs'ists of certain hovel features 1 of ohs'tr ie- 5 tion, combination and errshg'ei ent o-f parts and portiensas Wilibe' hereinafter described in detail and-particularly set forth in the appended claims, reference being had tothe accompanyin drawings-end to the chemo- 40 ter'sof refereficethei'e'on which form a, art

(ifrthi's a lication, in which? Figure 1, is an end 'elevatienal View of the device complete with the casing shown in section to facilitate the illustration. Fig.2

is aside eievtttioneii view of the seine with the casing shown in section to faciiitate the illustration. Fig; 3 is a top or plan view of the-frame member alone anti Fig. 4: is'e sec tionel view thfdiighM of Fig. 1.

similar paits aiYd'pOrtiOnS throughout the several views of the-"drawings; The fram member 1 ,-casihg=2,motor-'3, --rheostat 4,

Similar cha'iacteis ei reference 'r'e'ferto- Crank wheel '5, -:eohneetiiig rode, plunger member 7, Contact inemb'eisuppOit'fS, on tact memb rs 9, supporting reliefs 1'0, poi-ting roller 7 su ports 1'1, and sup-petting roller posts 12', constitute the p ineipel perts and oi-tions of my chiropractic adjustment e fie- .v t v "The irahie member iisshiiped,,as showii best in Figs. 2 and 3' oftheidratvihgspte' vitied "with an e tend d portion i at one end upon which the h-eiidleflk is ,It

is provided near" its op osite eiidwith it journal portion 1? whieh the ,pluhg r 1 member '7 is odaptedto heei oeate. ,It} is also provided with an upwardly extending jou'r'nal member 1? which sei've'sfas zi, 'ettiii ig for the shifts for the ei aiik wheel 15. 713etwee thispo'itiofn ne dthe'hahdieiheim her 1*,the theme-member is so shapedthet it is adapted as t, sup ort ifo-r", a sffil llectr c meto-i' 3 Whieh is mounted theiiqiifiiifi. pivotal manner by means of; ins posi tioned in v the holes 1 'inithe sides of-stii'd frame. This motor" 3 is held suqh i'fl tive position on theimm by i e'tths'of spring motor on the opposite side its "pivotal mounting fr m its drive wheel, fandfth ethere dof said spring Sechi'efdjtefthe frame 1, thus pioviding heans tendii g to raise the *drive'wheel of the motor upwardly atall times. This motor 3 is eonti'eliedihy a eonvehtionel vrheostet iiorflehehgiiig the a 111 5 extendin the efro-ihen i seivihg' as a ei-an1 ,ii on Whieh is pii ottlly mounted the one end efthe connecting rddfi, the other end of said eonneetinggrod isgpivotetll ohhe'et'ed to the upper end ofithe jpm i ge 7, which plunge-i7 is ree'ipr'eeehiy 'ih giit'ed and supported in the su orting poi tiohi of the ifraine l 'Sectirfed enthelowei'gefid of this plunger member? is the eoiitttet member sup-port 8 which" is prefer 1 y shaped as shown best in the Figs. 1 and"-'%6-f the drawings and provided with a plurality of slots, or elongated holes 8 therein in which'are mounted extended threaded lugs 9* on the contact members 9 and said contact members 9 are adjustably positioned on this support by means of thumb nuts 9*. These" contact members 9, it will be noted, are preferably resilient members'composed preferably of rubber sufficiently resilient to produce the proper results. Adjustably mounted in, the frame 1 by means of setv sorews12 are the supporting posts 12 which it will be noted areprovided with right angle 'turns 12 upon which are pivotally mounted the bifurcated roller supporting members llfby means of adjusting screws 11 and mounted between the bifurcated portions'ofthe member 11 are rollers which are adapted to rest upon the body of the patient and support the machine in the proper position and conduct it on the body whilethe contact member 9 is reci-p-rocated by the motor forproducing a stroke like action on the body of the patient as desired. It fwillbe noted that with the particular post members 12 and supports 11 that these rollers 10 maybe adjusted so-that they are of varying width apart as ,desired and may 1 be caused to maintain certain positionsin advance or valong the side of the contact members '9 ormay; be adjusted to provide the proper str'okeof the plungermember 7 relatively to the body of the patient by moving the post members 12 upwardly or downwardly in the frame 1. v

Though I have shown and described a particular construction, combination and arrangement o'f p'arts and portions, I do not wish-to be limited to this particular con- 's'truction,;combinatio11 and arrangement,

, but desire to include in the scope of my invention the construction, combination and arrangement substantially as set forth in the appended claims. v

I -It,'is obvious that withthis construction there is provided, a machine for making chiropractic adjustments on the vertebrae or [otherplaces as desired; that the members 9* are adjustable for different widths; that the plunger member 7'will be reciprocated in the frameand carry the members 9 backwardly forwardly providing a stroke action; thatthis stroke action may be regulated as to its length by means of the position of the rollers 10' relatively to the machine; that ;the crank 'wheel. 5 provides an increaseof power from the motor for direct action of th plunger 7; thatthe frictional contact between the wheel 5 and drive wheel 3 is provided by the spring 3*,through the pivotal mounting of the motor upon the frame 1;

that th device as a whole is very simple and economical of construction, durable, compactjm form and that the machinery is en- 'cased. 1

Having thus described my invention what ters Patentis, v j g j o 1. A device of the class described, including a supporting frame, a motor mounted on I claim as new and desire tosecure by Letsaid supporting frame, a friction wheel -revolubly mounted on said supporting "frame and adapted to engage the drive wheel-0f said motor, a crank arm extending from said wheel, a connecting rod with one end con-' nected to said crank arm, aplunger reoipro cably mounted in said frame and its one end extending below the sameand its opposite end pivotally connected to s aid connecting rod, and a resilient contact member secured to the lower end of said plunger member, L

2. A device of the class described, including a supporting frame, a motor mounted on said supporting. frame, ;a friction crank wheel revolubly mounted on said supporting frame and adapted to engage the drive wheel 1 of sa1d'motor,a crank arm extendlng from said wheel, a connecting rod with one end connectedto said crankarm, a plunger recip rocably'mounted in said frame, and its one endextending belowthe same. and its opposite end pivotally connected to said com necting rod, aresilient contactmembersecured to the lower endof said plunger mem her, and rollers for, supporting said fran1e.

3. A device of the class described, including a supporting-frame, a motor mounted r on said supporting frame africtioncrank wheel revolubly mounted on, said support-, ing frame and adaptedto engagethedrive wheel of said motor, a crank arm' extending from said wheel, a connecting rod with one ing a supporting frame, a motor mounted on sa1d supporting frame, a frict on crank wheel revolubly mounted on sa1d supporting frame and adapted to engage'the drive 'a 1 wheel of said motor, a crank arm extending from said wheel, a connecting rod lwith' one end connected to said crank ar 'n, plunger reclprocably mounted III-Said frame, and itsone endextendlng below the same 4. A device of the class describedpincluds and its oppositeendpivotally connected to V i said connecting rod, resilient cOntactmemberssecured to the lower end of'saidplun ger member, rollers for supportingsaid frame positioned on opposite ,sides of saiduresilient members, and means foradjusting the position of said rollers relatively to the movement of said resilientmembers,

amaze 5. A'device of the class described including a supporting frame provided with a handle on one end, sup porting rollers at its opposite end adjustably mounted thereon, a plunger reciprocably mounted in the said frame and supported thereby, means for re ciprocating said plunger comprising a connecting rod with one end connected to said plunger, its opposite end pivotally connected to a crank wheel supported on said frame, and a motor secured to said frame with its drive wheel in frictional engagement with said crank wheel.

6. A device of the class described, including a supporting frame, a motor mounted on said supporting'frame, a plunger reciprocably mounted on. said supporting frame and ing a supporting frame, a motor mounted on saidsupporting frame, a plunger reclprocably mounted on said supporting frame, crank means connecting said plun ger with said motor for reciprocating said,

plunger with the operation of, said motor,

and a resilient member secured to *the extended end of said plunger.

In testimony whereof, I have hereunto set my hand at San Diego, California, this 2nd day of June, 1921. y

ERNEST H. ASHLOCK. 

